FinalPrice

See what you'll actually pay. FinalPrice adds your sales tax to every price on the page and shows the tax-included total.

FinalPrice automatically detects prices on any webpage and shows you the real cost of items, tax included, before you buy. WHAT IT DOES • Scans prices on any page and adds a small badge showing the after-tax total • Optionally replaces the original price with the tax-included amount • Works on Amazon, Walmart, eBay, and virtually any e-commerce site TAX RATES • Auto-detects your US state via IP address • Or manually select your state from the dropdown • Add a local city/county rate on top of the state rate • Set a custom rate for specific sites CURRENCY CONVERSION • Convert displayed prices to 30+ currencies using live exchange rates • Rates are cached hourly — no unnecessary requests SITE CONTROLS • Blacklist sites where you don't want it running • Whitelist-only mode: run exclusively on sites you choose • Per-domain tax rate overrides PRIVACY • No data collection. No tracking. No ads. • All settings stored locally in your browser. • Network requests only when you use IP detection or currency conversion. • Full privacy policy linked in the extension.